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cc / paint / refcounted_buffer.h [blame]
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_PAINT_REFCOUNTED_BUFFER_H_
#define CC_PAINT_REFCOUNTED_BUFFER_H_
#include <utility>
#include <vector>
#include "base/memory/ref_counted.h"
#include "cc/paint/paint_export.h"
namespace cc {
// A trivial RefCounted wrapper for a block of data.
// This is intended to minimize the number of copies when e.g.
// recording large vertex/uv/index arrays to a PaintOpBuffer.
template <typename T>
class CC_PAINT_EXPORT RefCountedBuffer
: public base::RefCounted<RefCountedBuffer<T>> {
public:
REQUIRE_ADOPTION_FOR_REFCOUNTED_TYPE();
explicit RefCountedBuffer(std::vector<T> data) : buffer_(std::move(data)) {}
const std::vector<T>& data() const { return buffer_; }
std::vector<T>& data() { return buffer_; }
bool operator==(const RefCountedBuffer& other) const {
return buffer_ == other.buffer_;
}
private:
friend class base::RefCounted<RefCountedBuffer<T>>;
~RefCountedBuffer() = default;
std::vector<T> buffer_;
};
} // namespace cc
#endif // CC_PAINT_REFCOUNTED_BUFFER_H_